Effect of potential HONO sources on peroxyacetyl nitrate (PAN) formation in eastern China in winter
文献类型：期刊论文
| 作者 | Zhang, Jingwei; Guo, Yitian; Qu, Yu; Chen, Yong; Yu, Ruipeng; Xue, Chaoyang; Yang, Rui; Zhang, Qiang; Liu, Xingang; Mu, Yujing |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
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| 出版日期 | 2020-08 |
| 卷号 | 94页码:81-87 |
| ISSN号 | 1001-0742 |
| 关键词 | Nitrous acid (HONG) Peroxyacetyl nitrate (PAN) WRF-Chem model Winter haze ROx cycles |
| 英文摘要 | As an important secondary photochemical pollutant, peroxyacetyl nitrate (PAN) has been studied over decades, yet its simulations usually underestimate the corresponding observations, especially in polluted areas. Recent observations in north China found unusually high concentrations of PAN during wintertime heavy haze events, but the current model still cannot reproduce the observations, and researchers speculated that nitrous acid (HONO) played a key role in PAN formation. For the first time we systematically assessed the impact of potential HONO sources on PAN formation mechanisms in eastern China using the Weather Research and Forecasting/Chemistry (WRF-Chem) model in February of 2017. The results showed that the potential HONO sources significantly improved the PAN simulations, remarkably accelerated the ROx (sum of hydroxyl, hydroperoxyl, and organic peroxy radicals) cycles, and resulted in 80%-150% enhancements of PAN near the ground in the coastal areas of eastern China and 10%-50% enhancements in the areas around 35-40 degrees N within 3 km during a heavy haze period. The direct precursors of PAN were aldehyde and methylglyoxal, and the primary precursors of PAN were alkenes with C > 3, xylenes, propene and toluene. The above results suggest that the potential HONO sources should be considered in regional and global chemical transport models when conducting PAN studies. (C) 2020 Published by Elsevier B.V. on behalf of The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44540]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 推荐引用方式 GB/T 7714 | Zhang, Jingwei,Guo, Yitian,Qu, Yu,et al. Effect of potential HONO sources on peroxyacetyl nitrate (PAN) formation in eastern China in winter[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2020,94:81-87. |
| APA | Zhang, Jingwei.,Guo, Yitian.,Qu, Yu.,Chen, Yong.,Yu, Ruipeng.,...&An, Junling.(2020).Effect of potential HONO sources on peroxyacetyl nitrate (PAN) formation in eastern China in winter.JOURNAL OF ENVIRONMENTAL SCIENCES,94,81-87. |
| MLA | Zhang, Jingwei,et al."Effect of potential HONO sources on peroxyacetyl nitrate (PAN) formation in eastern China in winter".JOURNAL OF ENVIRONMENTAL SCIENCES 94(2020):81-87. |
入库方式： OAI收割
来源：生态环境研究中心
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